Sunrise Granted Patent for Mesophase Carbon Microsphere–Silicon Carbon Composite Anode Material, Strengthening Leadership in Solid-State Battery Anode Technologies
Sunrise New Energy (NASDAQ: EPOW) announced that its subsidiary was granted invention patent CN115188949B on October 6, 2025, for a mesophase carbon microsphere–silicon carbon composite anode material.
The patent describes a multi-step preparation method including polymerizing medium-temperature pitch, sedimentation/centrifugation, plasma modification, electrochemical silicon deposition with organosilane/organic lithium additives, washing and carbonization to produce a composite anode.
The company says the composite improves lithium-ion transport, structural stability, compressive strength and addresses silicon anode challenges of volume expansion and ionic conductivity, supporting large-scale solid-state battery industrialization and further R&D investment.
Sunrise New Energy (NASDAQ: EPOW) ha annunciato che la sua filiale ha ottenuto un brevetto di invenzione CN115188949B l'6 ottobre 2025, per un materiale anodo a base di microsfere di carbonio mesofasiche–carbonio di silicio.
Il brevetto descrive un metodo di preparazione in più fasi che comprende polimerizzazione del pitch a media temperatura, sedimentazione/centrifugazione, modificazione con plasma, deposizione elettrochimica di silicio con additivi organosilani/organici al litio, lavaggio e carbonizzazione per produrre un anodo composito.
L'azienda afferma che il composito migliora il trasporto di litio-ioni, la stabilità strutturale, la resistenza al compressione e affronta le sfide dell'anodo al silicio di espansione volumetrica e conduttività ionica, sostenendo l'industrializzazione su vasta scala delle batterie solid-state e ulteriori investimenti in R&D.
Sunrise New Energy (NASDAQ: EPOW) anunció que su subsidiaria obtuvo la patente de invención CN115188949B el 6 de octubre de 2025, para un material de ánodo de carbono de microsferas de carbono mesofásico–carbono de silicio.
La patente describe un método de preparación en varios pasos que incluye la polimerización de brea a temperatura media, sedimentación/centrifugación, modificación por plasma, depósito electroquímico de silicio con aditivos organosilanos/organicos de litio, lavado y carbonización para producir un ánodo compósito.
La empresa afirma que el compósito mejora el transporte de iones de litio, la estabilidad estructural, la resistencia a la compresión y aborda los desafíos del ánodo de silicio de expansión de volumen y conductividad iónica, apoyando la industrialización a gran escala de baterías de estado sólido y futuras inversiones en I+D.
Sunrise New Energy (NASDAQ: EPOW)는 자회사가 2025년 10월 6일 CN115188949B 특허를 받았다고 발표했다. 이 특허는 메소페이즈 카본 미세구체-실리콘 카본 복합 음극재에 대한 것이다.
특허는 중온 피치의 중합, 침전/원심분리, 플라즈마 개질, 유기실리콘/유기 리튬 첨가제를 사용한 전기화학적 실리콘 증착, 세척 및 탄화로 구성된 다단계 제조 방법을 설명한다.
회사는 이 복합체가 리튬이온 운반, 구조적 안정성, 압축 강도를 향상시키고, 부피 변화와 이온전도도라는 실리콘 음극의 과제를 해결하여 대규모 고체상전지 산업화 및 추가적인 연구개발 투자를 지원한다고 말했다.
Sunrise New Energy (NASDAQ: EPOW) a annoncé que sa filiale a obtenu le brevet d'invention CN115188949B le 6 octobre 2025, pour un matériau d'anode à base de micro-sphères de carbone mésophase – carbone de silicium .
Le brevet décrit une méthode de préparation en plusieurs étapes comprenant la polymérisation du mercure de pitch à température moyenne, la sédimentation/ centrifugation, la modification par plasma, le dépôt électrochimique de silicium avec des additifs organosilane/organique de lithium, lavage et carbonisation pour produire une anode composite.
L'entreprise indique que le composite améliore le transport des ions lithium, la stabilité structurelle, la résistance à la compression et résout les défis de l'anode au silicium tels que l'expansion volumétrique et la conductivité ionique, soutenant l'industrialisation à grande échelle des batteries à l'état solide et de futurs investissements en R&D.
Sunrise New Energy (NASDAQ: EPOW) gab bekannt, dass ihre Tochtergesellschaft am 6. Oktober 2025 das Erfindungspatent CN115188949B für ein Mesophasen-Carbon-Mikrosphären-Silizium-Carbon-Verbundanodenmaterial erhalten hat.
Das Patent beschreibt ein mehrstufiges Herstellungsverfahren, das die Polymerisation von mittlerem Pitch, Sedimentation/Zentrifugation, Plasma-Modifikation, elektrochemische Siliziumabscheidung mit Organosilan/organischen Lithiumzusätzen, Waschen und Karbonisierung zur Herstellung einer Verbund-Anode umfasst.
Das Unternehmen sagt, der Verbund verbessere den Lithium-Ionen-Transport, die strukturelle Stabilität, die Druckfestigkeit und adressiert die Herausforderungen der Silizum-Anode wie Volumenänderung und ionische Leitfähigkeit, was die groß angelegte Festkörperbatterie-Industrialisierung und weitere F&E-Investitionen unterstützt.
Sunrise New Energy (NASDAQ: EPOW) أعلنت أن شركتها الفرعية حصلت على براءة اختراع ابتكار CN115188949B في 6 أكتوبر 2025، لمادة دبوس أنود مركبة من ميكروسفيرات الكربون – كربون السيليكون من النوع المتوسط الطور
يوصف البراءة طريقة إعداد متعددة الخطوات تشمل بلمرة القير عند درجة حرارة متوسطة، الترسيب/التدوير المركزي، تعديل بجهاز البلازما، ترسيب سيليكون كهربائياً مع راصيد عضوي السيليكون/ليثيوم العضوي، الغسل والتحويل إلى كربنة لإنتاج أنود مركب.
تقول الشركة إن المركب يحسن نقل أيونات الليثيوم، والاستقرار البنيوي، وقوة التحمل ويعالج تحديات أنود السيليكون من اتساع الحجم والموصلية الأيونية، داعماً صناعة بطاريات الحالة الصلبة على نطاق واسع واستثمارات بحث وتطوير إضافية.
Sunrise New Energy (NASDAQ: EPOW) 宣布其子公司已于2025年10月6日获得发明专利 CN115188949B，用于一种 介相碳微球-硅碳复合材料的负极。
专利描述了一种多步制备方法，包括中温沥青聚合、沉降/离心、等离子体改性、使用有机硅烷/有机锂添加剂进行电化学硅沉积、清洗和热碳化以制备复合负极。
公司表示，该复合材料改善了锂离子传输、结构稳定性、抗压强度，并解决了硅负极的挑战，如体积膨胀和离子导电性，有助于大规模固态电池产业化和进一步的研发投入。
- Patent CN115188949B granted on October 6, 2025
- Novel composite targets silicon anode volume expansion
- Claims improved lithium-ion transport and structural stability
- Supports large-scale solid-state battery industrialization
- None.
Insights
Patent grants IP protection for a novel mesophase carbon–silicon composite anode, strengthening technical defensibility.
The granted patent CN115188949B documents a specific preparation route using polymerized pitch, sedimentation, plasma modification, electrochemical silicon deposition, washing, and carbonization to produce mesophase carbon microsphere–silicon carbon composite anodes.
This approach explicitly targets improved lithium transport, structural stability, and compressive strength, addressing volume expansion and ionic conductivity challenges in silicon‑containing anodes during solid‑state battery assembly. The claims therefore protect a materials‑level solution to those technical failure modes.
Monitor the patent number CN115188949B and the company statement about ongoing R&D investment for signs of scale‑up or licensing. The approval on
This patent strengthens Sunrise's competitive position in solid‑state anode IP and supports its industrialization messaging.
By securing an invention patent, Sunrise gains exclusivity over a defined manufacturing method and composite structure. That exclusivity can aid technology transfer, supply agreements, and R&D leverage without revealing trade secrets.
The company explicitly links the patent to enhanced energy density, cycle life, and safety, and commits continued R&D investment. Watch for concrete follow‑ups such as pilot production, partnerships, or licensing announcements to validate commercial impact. The patent grant dated
DOVER, USA, Oct. 06, 2025 (GLOBE NEWSWIRE) -- Sunrise New Energy Co., Ltd. (“Sunrise”, the “Company”, “we” or “our”) (NASDAQ: EPOW) today announced that its subsidiary, Sunrise (Guizhou) New Energy Materials Co., Ltd., has been granted an invention patent titled “Preparation Method of a Mesophase Carbon Microsphere–Silicon Carbon Composite Anode Material” (Patent Granted No. CN115188949B). This newly granted patent represents a major technological breakthrough in solid-state battery anode materials, solidifying Sunrise’s leading position in the field of next-generation solid-state battery technologies and advancing its innovation roadmap in high-performance energy materials.
The patented invention discloses an innovative method for preparing mesophase carbon microsphere–silicon carbon composite anode materials. The process involves polymerizing medium-temperature pitch in a reactor to obtain polymerized pitch, followed by sedimentation and centrifugation to produce mesophase carbon microspheres. These microspheres are then modified using plasma technology to create modified mesophase carbon microspheres. An organic solvent containing an organosilane coupling agent and organic lithium salt is prepared, and silicon salts are deposited onto the modified microsphere surface via an electrochemical deposition method, followed by washing and carbonization to yield the final composite material.
This patented technology plays a critical role in the development of solid-state batteries. The newly developed composite material demonstrates superior lithium-ion transport, structural stability, and compressive strength, significantly enhancing the energy density, cycle life, and safety of solid-state batteries. By optimizing the structural interface between carbon and silicon, the technology effectively overcomes the challenges of volume expansion and ionic conductivity faced by silicon-based anodes during high-pressure solid-state battery assembly, providing key technical support for the large-scale industrialization of solid-state batteries.
“This patent approval further strengthens Sunrise’s leadership in solid-state battery anode materials,” said Haiping Hu, Founder and CEO of Sunrise New Energy. “We will continue to expand our R&D investment, focusing on innovation and industrialization of next-generation battery materials, and accelerating the establishment of a globally leading new energy materials technology platform.”
About Sunrise New Energy Co., Ltd
Headquartered in Zibo, Shandong Province, China, Sunrise New Energy Co., Ltd., through its joint venture, is engaged in the manufacturing and sale of graphite anode material for lithium-ion batteries. The Company's joint venture has completed the construction of a manufacturing facility with a production capacity of 50,000 tons in Guizhou Province, China. The plant runs on inexpensive electricity from renewable sources, which helps to make Sunrise New Energy a low-cost and low–environmental-impact producer of graphite anode material. Mr. Haiping Hu, the founder and CEO of the Company, is a major pioneer for the graphite anode industry in China starting from 1999. The Company’s management team is also composed of experts with years of experiences and strong track-records of success in the graphite anode industry. In addition, the Company also operates a knowledge sharing platform in China. For further information, please visit the Company’s website at www.sunrisenewenergy.com.
Forward-looking statement
Certain statements in this press release regarding the Company's future expectations, plans and prospects constitute forward-looking statements as defined by Private Securities Litigation Reform Act of 1995. Forward-looking statements include statements about plans, goals, objectives, strategies, future events, expected results, assumptions and any other factual statements that have not occurred. Any words that refer to "may", "will", "want", "should", "believe", "expect", "expect", "estimate", "estimate" or similar non-factual words, shall be regarded as forward-looking statements. Due to various factors, the actual results may differ materially from the historical results or the contents expressed in these forward-looking statements. These factors include, but are not limited to, the company's strategic objectives, the company's future plans, market demand and user acceptance of the company's products or services, technological updates, economic trends, the company's reputation and brand, the impact of industry competition and bidding, relevant policies and regulations, the ups and downs of China's macroeconomic conditions, the relevant international market conditions, and other related risks and assumptions disclosed in the Company’s Annual Report on Form 20-F published on the SEC’s website. In view of the above and other related reasons, we urge investors to visit the SEC’s website and consider other factors that may affect the Company's future operating results. The Company is under no obligation to make public amendments to changes in these forward-looking statements unless required by law.
For more information, please contact:
The Company:
IR Department
Email: IR@sunrisenewenergy.com
Phone: +86 4009919228
FAQ
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